Forum für Wissenschaft, Industrie und Wirtschaft

Hauptsponsoren:     3M 
Datenbankrecherche:

 

First synthesis of gold nanoparticles inside human hair for dyeing and much more

06.12.2012
In a discovery with applications ranging from hair dyeing to electronic sensors to development of materials with improved properties, scientists are reporting the first synthesis of gold nanoparticles inside human hairs. Their study appears in ACS' journal Nano Letters.

Philippe Walter and colleagues explain that gold nanoparticles — 40,000-60,000 of which could fit across the width of a human hair — are a hot topic. Scientists are exploring uses, ranging from electronics and sensors to medical diagnostic tests and cancer treatments.

Gold nanoparticles have been deposited on hair for use as electrodes, and gold nanoparticles had been used to dye wool. Walter's team looked at a new use — dyeing hair, inspired by the ancient Greeks' and Romans' use of another metal, lead, to color their hair.

They describe the first synthesis of fluorescent gold nanoparticles inside human hair. It involved soaking white hairs in a solution of a gold compound. The hairs turned pale yellow and then darkened to a deep brown. Using an electron microscope, the scientists confirmed that the particles were forming inside the hairs' central core cortex. The color remained even after repeated washings.

The authors acknowledge funding from the Agence Nationale de la Recherche.
The American Chemical Society is a nonprofit organization chartered by the U.S. Congress. With more than 164,000 members, ACS is the world's largest scientific society and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. Its main offices are in Washington, D.C., and Columbus, Ohio.

To automatically receive news releases from the American Chemical Society, contact newsroom@acs.org.

Michael Bernstein | EurekAlert!
Further information:
http://www.acs.org

Further reports about: chemical engineering diagnostic test human hair

More articles from Life Sciences:

nachricht Faster, cheaper tests for sickle cell
02.09.2014 | Harvard University

nachricht From Termite Fumigant to Molecular Coupling
01.09.2014 | Angewandte Chemie International Edition

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Anzeige

Anzeige

IHR
JOB & KARRIERE
SERVICE
im innovations-report
in Kooperation mit academics
Veranstaltungen

„Studieren ab 16“: Vor dem Abi an die Uni

02.09.2014 | Veranstaltungen

„Progress in Biogas III“: Fachtagung und Messe zu Biogas-Erzeugung und -Forschung

02.09.2014 | Veranstaltungen

Wichtigste europäische Fachtagung zu nanoporösen Materialien in Leipzig

02.09.2014 | Veranstaltungen

 
B2B-VideoLinks
Weitere VideoLinks >>>
Aktuelle Beiträge

Höhere Sicherheit, weniger Staus: Siemens liefert Videosystem ins polnische Bydgoszcz

02.09.2014 | Verkehr Logistik

Tauschgeschäft: Big Data gegen Sicherheit und Geld

02.09.2014 | Studien Analysen

Siemens übergibt GuD-Kraftwerk Shuweihat S3 in Abu Dhabi

02.09.2014 | Unternehmensmeldung